Former Abba bandmates Benny Andersson and Bjorn Ulvaeus are rumoured to be appearing as guest judges on Simon Cowell’s X Factor talent show. They could certainly teach today’s wanabee pop stars a thing or too. Abba were Sweden’s best export and had a string of chart hits with the likes of Mamma Mia, SOS and Dancing Queen. They are one of the most enduring pop groups of all time and are as popular today as they’ve always been. I have always loved Abba. They were one of my favourite pop groups. I still have all my old Abba vinyl records in pristine condition!